Matches in SemOpenAlex for { <https://semopenalex.org/work/W1636703780> ?p ?o ?g. }
Showing items 1 to 61 of
61
with 100 items per page.
- W1636703780 abstract "The goal of this work is to study the validity of the fluctuation dissipation relation (FDR) during aging in a glassy polymer and in general glassy dynamics, through probing aging dynamics, in thin films of polyvinyl acetate (PVAc). We use a rapid quench process by applying local radiation heating to a thin layer capacitor. The time evolution of polarization noise and dielectric susceptibility are analyzed in the frequency range 0.0259 Hz- 13.307 Hz following quenches from above to below the glass transition temperature (Tg). It is found that understanding and eliminating various artifacts such as signal drift, non-stationary responses, extraneous noise spikes due to differential thermal contractions, also reducing the effect of spectral leakage due to the finite Fourier transform artifacts and a carful background signal subtraction are very important for accurately determining effective temperature. We find moderate FDR violations, which remain clearly above the bath temperature for more than 100s after quench for frequencies < 0.4159 Hz. This corresponds to f tw>10, much larger than for spin glasses. However, we also detect a very strong violations which rapidly decay, with Teff >103, for the lowest frequencies and shortest aging times, tw. Our measurements of the dielectric response in glassy polymers at the equilibrium and aging regime in frequency range of 10-3 to 105 Hz provide a direct analogy with the magnetic-susceptibility aging studies in spin glasses. We can then examine if the theories proposed for spin glasses have relevance for glassy polymers. The results of these experimental studies are important in understanding the relaxation dynamics of glassy systems and in testing the validity and the relevance of the effective temperature concepts and also distinguishing between different theoretical models." @default.
- W1636703780 created "2016-06-24" @default.
- W1636703780 creator A5081878889 @default.
- W1636703780 date "2021-05-10" @default.
- W1636703780 modified "2023-09-24" @default.
- W1636703780 title "Fluctuation dissipation relation and scaling behavior during aging in polymer glasses" @default.
- W1636703780 doi "https://doi.org/10.17760/d10016430" @default.
- W1636703780 hasPublicationYear "2021" @default.
- W1636703780 type Work @default.
- W1636703780 sameAs 1636703780 @default.
- W1636703780 citedByCount "0" @default.
- W1636703780 crossrefType "dissertation" @default.
- W1636703780 hasAuthorship W1636703780A5081878889 @default.
- W1636703780 hasBestOaLocation W16367037801 @default.
- W1636703780 hasConcept C121332964 @default.
- W1636703780 hasConcept C122865956 @default.
- W1636703780 hasConcept C133386390 @default.
- W1636703780 hasConcept C135402231 @default.
- W1636703780 hasConcept C150775274 @default.
- W1636703780 hasConcept C159985019 @default.
- W1636703780 hasConcept C192562407 @default.
- W1636703780 hasConcept C2524010 @default.
- W1636703780 hasConcept C26873012 @default.
- W1636703780 hasConcept C33923547 @default.
- W1636703780 hasConcept C49040817 @default.
- W1636703780 hasConcept C521977710 @default.
- W1636703780 hasConcept C97274863 @default.
- W1636703780 hasConcept C97355855 @default.
- W1636703780 hasConcept C99844830 @default.
- W1636703780 hasConceptScore W1636703780C121332964 @default.
- W1636703780 hasConceptScore W1636703780C122865956 @default.
- W1636703780 hasConceptScore W1636703780C133386390 @default.
- W1636703780 hasConceptScore W1636703780C135402231 @default.
- W1636703780 hasConceptScore W1636703780C150775274 @default.
- W1636703780 hasConceptScore W1636703780C159985019 @default.
- W1636703780 hasConceptScore W1636703780C192562407 @default.
- W1636703780 hasConceptScore W1636703780C2524010 @default.
- W1636703780 hasConceptScore W1636703780C26873012 @default.
- W1636703780 hasConceptScore W1636703780C33923547 @default.
- W1636703780 hasConceptScore W1636703780C49040817 @default.
- W1636703780 hasConceptScore W1636703780C521977710 @default.
- W1636703780 hasConceptScore W1636703780C97274863 @default.
- W1636703780 hasConceptScore W1636703780C97355855 @default.
- W1636703780 hasConceptScore W1636703780C99844830 @default.
- W1636703780 hasLocation W16367037801 @default.
- W1636703780 hasOpenAccess W1636703780 @default.
- W1636703780 hasPrimaryLocation W16367037801 @default.
- W1636703780 hasRelatedWork W1998966741 @default.
- W1636703780 hasRelatedWork W2004819647 @default.
- W1636703780 hasRelatedWork W2035866435 @default.
- W1636703780 hasRelatedWork W2049952244 @default.
- W1636703780 hasRelatedWork W2053508813 @default.
- W1636703780 hasRelatedWork W2081126748 @default.
- W1636703780 hasRelatedWork W2088123556 @default.
- W1636703780 hasRelatedWork W2342349820 @default.
- W1636703780 hasRelatedWork W2353011522 @default.
- W1636703780 hasRelatedWork W4280616684 @default.
- W1636703780 isParatext "false" @default.
- W1636703780 isRetracted "false" @default.
- W1636703780 magId "1636703780" @default.
- W1636703780 workType "dissertation" @default.